Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Raccoon River Sand · 13023159.0 on-site hours reported
Regular Safety and Health Inspection
Ottawa Quarry · 140159022.0 on-site hours reported
Regular Safety and Health Inspection
Anderson Mine and Mill · 400002227.0 on-site hours reported
Regular Safety and Health Inspection
Henry County Mines & Mill · 400019422.0 on-site hours reported
Regular Safety and Health Inspection
Calhoun Quarry · 40033959.0 on-site hours reported
Electrical conductors.
Alden Portable Plant #2 · 130203330 CFR 56.12004 · $193.00 proposed penalty
Electrical conductors.
Alden Portable Plant #2 · 130203330 CFR 56.12004 · $193.00 proposed penalty
Electrical conductors.
Alden Portable Plant #2 · 130203330 CFR 56.12004 · $193.00 proposed penalty
Electrical conductors.
Raccoon River Sand · 130231530 CFR 56.12004 · $151.00 proposed penalty
Housekeeping.
Anderson Mine and Mill · 400002230 CFR 57.20003(c) · $151.00 proposed penalty
Temporary, portable containers.
Anderson Mine and Mill · 400002230 CFR 47.44(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
HATTON QUARRY · 030161421.5 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
CLARKS QUARRY · 31020092.5 on-site hours reported
Regular Safety and Health Inspection
BURNING SPRINGS MINE · 460886222.8 on-site hours reported
Compliance Follow-up Inspection
SDI Aggregates LLC · 08013362.0 on-site hours reported
Regular Safety and Health Inspection
Portable Crusher #2 · 41042045.5 on-site hours reported
Follow-up corrective measures when a standard threshold shift is detected.
Sunol Aggregates · 040185930 CFR 62.174(a) · $151.00 proposed penalty
Correction of dangerous conditions.
MN Portable #2 · 210159330 CFR 56.12030 · $151.00 proposed penalty
Safety defects; examination, correction and records.
MN Portable #2 · 210159330 CFR 56.14100(b) · $151.00 proposed penalty
Housekeeping.
CAYCE QUARRY · 380001630 CFR 56.20003(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
O'Neal Quarry · 01030767.0 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
Red Oak Quarry · 09000693.5 on-site hours reported
Regular Safety and Health Inspection
Hartford Quarry · 150009531.0 on-site hours reported
Regular Safety and Health Inspection
New Ulm Quarry · 21007895.5 on-site hours reported
Regular Safety and Health Inspection
MN Portable #2 · 210159314.0 on-site hours reported
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.